1 /* $NetBSD: tx39uart.c,v 1.13 2005/12/11 12:17:34 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: tx39uart.c,v 1.13 2005/12/11 12:17:34 christos Exp $"); 41 42 #include "opt_tx39uart_debug.h" 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/device.h> 47 48 #include <machine/bus.h> 49 #include <machine/intr.h> 50 51 #include <hpcmips/tx/tx39var.h> 52 #include <hpcmips/tx/tx39uartvar.h> 53 54 #include "locators.h" 55 56 int tx39uart_match(struct device *, struct cfdata *, void *); 57 void tx39uart_attach(struct device *, struct device *, void *); 58 int tx39uart_print(void *, const char *); 59 int tx39uart_search(struct device *, struct cfdata *, 60 const int *, void *); 61 62 struct tx39uart_softc { 63 struct device sc_dev; 64 tx_chipset_tag_t sc_tc; 65 int sc_enabled; 66 }; 67 68 CFATTACH_DECL(tx39uart, sizeof(struct tx39uart_softc), 69 tx39uart_match, tx39uart_attach, NULL, NULL); 70 71 int 72 tx39uart_match(struct device *parent, struct cfdata *cf, void *aux) 73 { 74 return ATTACH_LAST; 75 } 76 77 void 78 tx39uart_attach(struct device *parent, struct device *self, void *aux) 79 { 80 struct txsim_attach_args *ta = aux; 81 struct tx39uart_softc *sc = (void *)self; 82 tx_chipset_tag_t tc; 83 84 printf("\n"); 85 sc->sc_tc = tc = ta->ta_tc; 86 87 config_search_ia(tx39uart_search, self, "txcomif", tx39uart_print); 88 } 89 90 int 91 tx39uart_search(struct device *parent, struct cfdata *cf, 92 const int *ldesc, void *aux) 93 { 94 struct tx39uart_softc *sc = (void *)parent; 95 struct tx39uart_attach_args ua; 96 97 ua.ua_tc = sc->sc_tc; 98 ua.ua_slot = cf->cf_loc[TXCOMIFCF_SLOT]; 99 100 if (ua.ua_slot == TXCOMIFCF_SLOT_DEFAULT) { 101 printf("tx39uart_search: wildcarded slot, skipping\n"); 102 return 0; 103 } 104 105 if (!(sc->sc_enabled & (1 << ua.ua_slot)) && /* not attached slot */ 106 config_match(parent, cf, &ua)) { 107 config_attach(parent, cf, &ua, tx39uart_print); 108 sc->sc_enabled |= (1 << ua.ua_slot); 109 } 110 111 return 0; 112 } 113 114 int 115 tx39uart_print(void *aux, const char *pnp) 116 { 117 struct tx39uart_attach_args *ua = aux; 118 119 aprint_normal(" slot %d", ua->ua_slot); 120 121 return QUIET; 122 } 123